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1.1.1.3 ! root 1: /* 1.1 root 2: * UAE - The Un*x Amiga Emulator 1.1.1.3 ! root 3: * 1.1.1.2 root 4: * Support for Amiga audio.device and AHI.device sound. 1.1.1.3 ! root 5: * 1.1.1.2 root 6: * Copyright 1996, 1997, 1998 Samuel Devulder, Holger Jakob (AHI) 1.1 root 7: */ 8: 1.1.1.2 root 9: #ifdef HAVE_DEVICES_AHI_H 1.1.1.3 ! root 10: #define USE_AHIDEVICE 1.1.1.2 root 11: #ifdef FRAME_RATE_HACK 12: /* holger:In this mode emulation speed is adjusted with sound dma 1.1.1.3 ! root 13: and sound output delay does not depend on sndbufsize 1.1.1.2 root 14: #define AHI_DMA_MODE 15: */ 1.1 root 16: #endif 1.1.1.3 ! root 17: #endif 1.1 root 18: 19: #include <exec/memory.h> 20: #include <exec/devices.h> 21: #include <exec/io.h> 22: 23: #include <graphics/gfxbase.h> 24: #include <devices/timer.h> 25: #include <devices/audio.h> 26: 1.1.1.2 root 27: #if defined(POWERUP) 28: #ifndef USE_CLIB 29: #include <powerup/ppcproto/exec.h> 30: #include <powerup/ppcproto/dos.h> 31: /* sam: no inline/alib.h on powerup, so use this instead :( */ 32: static void BeginIO(struct IORequest *iorequest) 33: { 34: struct Caos MyCaos; 35: MyCaos.a1 = (ULONG) iorequest; 36: MyCaos.M68kCacheMode = IF_CACHEFLUSHALL; 37: MyCaos.PPCCacheMode = IF_CACHEFLUSHALL; 38: MyCaos.caos_Un.Offset = (-0x1e); 39: MyCaos.a6 = (ULONG) iorequest->io_Device; 40: PPCCallOS(&MyCaos); 41: } 42: #else 43: #include <clib/exec_protos.h> 44: #include <clib/alib_protos.h> 45: #endif 46: #else 47: #include <proto/exec.h> 48: #include <proto/dos.h> 49: #ifdef __GNUC__ 50: #include <proto/alib.h> 51: #elif defined(__SASC) 52: #include <clib/alib_protos.h> 53: #endif 54: #endif 55: 56: #ifdef USE_AHIDEVICE 57: #include <devices/ahi.h> 1.1.1.3 ! root 58: extern struct AHIRequest *AHIio[]; 1.1.1.2 root 59: extern struct AHIRequest *linkio; 60: #ifdef AHI_DMA_MODE 61: extern struct Library *AHIBase; 62: extern struct AHIAudioCtrl *actrl; 63: extern uae_u16 *sndbufptrmax; 64: #endif /* AHI_DMA_MODE */ 65: #endif /* USE_AHI_DEVICE */ 66: 1.1 root 67: extern char whichchannel[]; 68: extern struct IOAudio *AudioIO; 69: extern struct MsgPort *AudioMP; 70: extern struct Message *AudioMSG; 71: 72: extern unsigned char *buffers[2]; 73: extern uae_u16 *sndbuffer, *sndbufpt; 1.1.1.2 root 74: extern int bufidx, devopen,ahiopen; 1.1 root 75: extern int sndbufsize; 76: 77: extern int have_sound, clockval, oldledstate, period; 78: 79: extern ULONG AUDIO_FILE; 80: 81: static __inline__ void flush_sound_buffer(void) 82: { 83: if(AUDIO_FILE) { 1.1.1.3 ! root 84: Write(AUDIO_FILE, ! 85: sndbuffer = sndbufpt = (uae_u16*)buffers[bufidx], ! 86: sndbufsize); 1.1.1.2 root 87: } else if(ahiopen) { 88: #ifdef USE_AHIDEVICE 89: void *tmp; 90: 91: AHIio[bufidx]->ahir_Std.io_Message.mn_Node.ln_Pri = 0; 92: AHIio[bufidx]->ahir_Std.io_Command = CMD_WRITE; 93: AHIio[bufidx]->ahir_Std.io_Data = buffers[bufidx]; 94: AHIio[bufidx]->ahir_Std.io_Length = sndbufsize; 95: AHIio[bufidx]->ahir_Std.io_Offset = 0; 96: AHIio[bufidx]->ahir_Frequency = currprefs.sound_freq; 97: if( currprefs.stereo ) 1.1.1.3 ! root 98: AHIio[bufidx]->ahir_Type = (currprefs.sound_bits==16) ? 1.1.1.2 root 99: AHIST_S16S : AHIST_S8S; 100: else 1.1.1.3 ! root 101: AHIio[bufidx]->ahir_Type = (currprefs.sound_bits==16) ? 1.1.1.2 root 102: AHIST_M16S : AHIST_M8S; 103: AHIio[bufidx]->ahir_Volume = 0x10000; /* Full volume */ 104: AHIio[bufidx]->ahir_Position = 0x8000; /* Centered */ 105: AHIio[bufidx]->ahir_Link = linkio; 106: SendIO((struct IORequest *) AHIio[bufidx]); 107: 108: if( linkio ) WaitIO((struct IORequest *) linkio); 109: linkio = AHIio[bufidx]; 110: /* double buffering */ 111: bufidx = 1 - bufidx; 112: sndbuffer = sndbufpt = (uae_u16*)buffers[bufidx]; 113: #endif 114: } else { 1.1 root 115: static char IOSent = 0; 116: 117: AudioIO->ioa_Request.io_Command = CMD_WRITE; 118: AudioIO->ioa_Request.io_Flags = ADIOF_PERVOL|IOF_QUICK; 119: AudioIO->ioa_Data = (uae_s8 *)buffers[bufidx]; 120: AudioIO->ioa_Length = sndbufsize; 121: AudioIO->ioa_Period = period; 122: AudioIO->ioa_Volume = 64; 123: AudioIO->ioa_Cycles = 1; 124: 125: if(IOSent) WaitIO((void*)AudioIO); else IOSent=1; 126: BeginIO((void*)AudioIO); 127: 128: /* double buffering */ 129: bufidx = 1 - bufidx; 130: sndbuffer = sndbufpt = (uae_u16*)buffers[bufidx]; 131: } 132: } 133: 134: static __inline__ void check_sound_buffers (void) 135: { 1.1.1.2 root 136: #ifndef AHI_DMA_MODE 1.1 root 137: if ((char *)sndbufpt - (char *)sndbuffer >= sndbufsize) { 138: flush_sound_buffer(); 139: } 1.1.1.2 root 140: #endif 1.1 root 141: } 142: 1.1.1.2 root 143: #ifdef AHI_DMA_MODE 144: #define PUT_SOUND_BYTE(b) \ 145: if (sndbufpt == sndbufptrmax) { \ 146: sndbufpt = (uae_u16 *)buffers[0]; \ 147: } \ 148: *(uae_u8 *)sndbufpt = b; \ 149: sndbufpt = (uae_u16 *)(((uae_u8 *)sndbufpt) + 1); 150: 151: #define PUT_SOUND_WORD(b) \ 152: if (sndbufpt == sndbufptrmax) { \ 153: sndbufpt = (uae_u16 *)buffers[0]; \ 154: } \ 155: *(uae_u16 *)sndbufpt = b; \ 156: sndbufpt = (uae_u16 *)(((uae_u8 *)sndbufpt) + 2); 157: #else 1.1 root 158: #define PUT_SOUND_BYTE(b) do { *(uae_u8 *)sndbufpt = b; sndbufpt = (uae_u16 *)(((uae_u8 *)sndbufpt) + 1); } while (0) 159: #define PUT_SOUND_WORD(b) do { *(uae_u16 *)sndbufpt = b; sndbufpt = (uae_u16 *)(((uae_u8 *)sndbufpt) + 2); } while (0) 1.1.1.2 root 160: #endif 161: 162: #ifdef USE_AHIDEVICE 163: #define HAVE_STEREO_SUPPORT 164: /* left and right channel on wrong side */ 165: #define PUT_SOUND_BYTE_LEFT(b) PUT_SOUND_BYTE(b) 166: #define PUT_SOUND_WORD_LEFT(b) PUT_SOUND_WORD(b) 167: #define PUT_SOUND_BYTE_RIGHT(b) PUT_SOUND_BYTE(b) 168: #define PUT_SOUND_WORD_RIGHT(b) PUT_SOUND_WORD(b) 169: #endif 170: 1.1 root 171: #define SOUND16_BASE_VAL 0 172: #define SOUND8_BASE_VAL 0 173: 174: #define DEFAULT_SOUND_MAXB 8192 175: #define DEFAULT_SOUND_MINB 8192 176: #define DEFAULT_SOUND_BITS 16 177: #define DEFAULT_SOUND_FREQ 11025 178: 179: #undef DONT_WANT_SOUND
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